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xflouris / libpll

Phylogenetic Likelihood Library
GNU Affero General Public License v3.0
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derivatives-oddstates segmentation fault #139

Closed xflouris closed 7 years ago

xflouris commented 7 years ago

When compiling libpll with clang I get a segmentation fault with the derivatives-oddstates test case when using tip-pattern and AVX2. Here's how to reproduce the error:

cd $LIBPLL_PATH
CC=clang ./configure; make && sudo make install
test/obj/derivatives-oddstates tv avx2

Surprisingly, if I use valgrind test/obj/derivatives-oddstates tv avx2 I often get no error.

Also, using AVX instead of AVX2 works without problems.

amkozlov commented 7 years ago

can't reproduce it on Mac with dba4e07f84815313e2c6eaea72af3d2940309596 and

apple-sco:test sco$ clang -v
Apple LLVM version 8.0.0 (clang-800.0.42.1)
Target: x86_64-apple-darwin16.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

have you recompiled the tests as well with clang? if so, could you please run it with gdb and post the output?

xflouris commented 7 years ago

@amkozlov : i didn't try it on mac, only on linux. Tests can be compiled with either gcc or clang, it doesn't matter. I'll check with gdb.

amkozlov commented 7 years ago

@xflouris: all tests run successfully with the latest commit on my machine, with both GCC and clang. could you please double-check?

xflouris commented 7 years ago

works fine now! closing the issue